Ian Ziering as Fin Shepard

Cassie Scerbo as Nova Clarke

Frankie Muniz as Lucas

Tara Reid as April Dawn Wexler-Shepard

Ryan Whitney as Claudia Sheperd

David Hasselhoff as Gilbert Grayson Sheperd

Mark Cuban as President of the United States

Bo Derek as May Wexler

Blair Fowler as Jess

Michael Winslow as Brian Jones

Jack Griffo as Billy

Michelle Beadle as Agent Argyle

Ne-Yo as Agent Devereux

Chris Irvine as Bruce

Mark McGrath as Martin Brody

Melvin Gregg as Chadd

Grant Imahara as Lodge

Christopher Judge as Lead Agent Model

Lou Ferrigno as Agent Banner

Lorenzo Lamas as Sergeant Rock

Kim Richards as Babs Jensen

Bill Engvall as Gary Martin Hays

Jackie Collins as Jackie Collins

Cindy Margolis as Ms. Litella

Robert Klein as Mayor of New York

Rick Fox as Rick

Jerry Springer as Mr. White

Penn Jillette as Lieutenant Colonel Stylo

Teller as Major Caissier

Kendra Wilkinson as Flo

Holly Madison as Lieutenant Harrison

Erika Jordan as Harleen Quinn (uncredited)

Diana Terranova as Bride

Steve Guttenberg as Colton West

George R. R. Martin as George R. R. Martin

Hoda Kotb as Hoda Kotb

Anthony C. Ferrante as NASA Launch Director Marymee

Matt Lauer as Matt Lauer

Al Roker as Al Roker

Kathie Lee Gifford as Kathy Lee Gifford

Benjy Bronk as Preacher

Oliver Kalkofe as Roller Coaster Rider

Peter Rütten as Roller Coaster Rider

Maryse Mizanin as Officer Davis

Bruno Salomone as René Joubert

Darcy DeMoss as Airman #1

Marc Maron as Club Promoter (Uncredited)

Genevieve Morton as Guest at the White House

Jared Fogle as Jared

Anthony Weiner as NASA Director Regina

Ray J as Tom Major

Chad Johnson as Sergeant

Chris Kirkpatrick as Lifeguard

Gerald 'Slink' Johnson as Lieutenant Jared

Ann Coulter as Vice President Sonia Buck

Kellita Smith as Sergeant Roberta Warren

Maria Menounos as C.J. Sorkin

Keltie Knight as Alves

Reza Farahan as Park Police Guard #1

Tim Russ as General Gottleib

Ryan Kerrigan as Technician Garber

Renée Willett as Technician Hammer

Michael Bolten as Steve the Ride Attendant

Ron Starrantino as Private Kelly

Brad Keselowski as Brad Keselowski

Joey Logano as Joey Logano

Bobak Ferdowsi as Matt Mason

George Alan as background

Petunia as Petunia

Chad Johnson as Sergeant